Lead-headed nail



\March 23,. 1937. R. E. CAM P ET AL 2,074,773

- LEjAD HEADED NAIL Filed June '17, 1935 2 Sheets-Sheet l hwemfwm: B nMaw 5 (AMP m/ JOHN J 677Y5 March 23, 1937. R. CAMP ET AL 2,074,773

' LEAD HEADED NAIL Filed June 17, 1955 2 Sheets-Sheet 2 [mm 22273.-EHYMOND E. CQMP and JOHN J. 6TEY6/K.

Patented Mar. 23, 1937 UNITED STATES PATENT OFFICE Jersey 111.,assignors to'lhe American Steel and Wire Company of New Jersey, acorporation of New Application June 17, 1935, Serial No. 27,071 Claims.(on. 85-28) This invention relates to lead-headed nails which broadlyconsist of steel wire nails providing integral heads to which lead isapplied so as to enclose the same.

5 One of the objects is to improve such nails so i as to eliminateslipping or loosening of the lead respecting their steel heads. Otherobjects may be inferred.

Referring to the accompanying drawings:

Figure 1 shows the side of a nail which illustrates the presentinvention and as it appears before its head is enclosed with lead.

Figure 2 shows the top of thisnail.

V Figure 3 shows the nail after its head is en-.

closed with lead, the head and lead partbeing sectioned.

Figure 4 shows the same as Figure 3 except that it is not sectioned.

Figure 5 shows the side of the head of another hall which alsoillustrates the invention.

Figure 6 shows the top of the last named nail.

Figure 7 shows the side of amodifled form of the nail shown by Figures 1through 3.

Figure 8 shows the top of this modified nail.

Figure 9 shows the side of the head of still another nail whichillustrates the invention.

Figure 10 is a bottom view of this nail.

More particularly, the nails are steel wire nails and each includes ashank l havinga sharpened driving point 2, and a head 3 providing aplurality of spaced protuberances l on its top surface. Specifically,there are four protuberances which are arranged close to thecircumference of the head and are equidistantly spaced from each other.They are of substantial height and provide flat inclined anchoring surfaces for the lead.

' Hence they may be either rectangular of base as in the case of theprotuberances 4 shown by Figures 1, 2 and 3, or may have triangularbases as in 40 the case of the protuberances 4 shown by Figures 5 and 6.In all cases they are of sufllcient height to function as anchors forpreventing slippage or looseningof the lead which eventually enclosestheir heads. Preferably, they should be about as high as the heads arethick.

In their flnal form the nails further include the lead 5 which enclosestheir heads. This is shown by Figures 3 and 4 in the case of the firstmen tioned nail but either nail will obviously appear externally as isshown by Figure 4. The'lead may have any outside configuration providingsuch does not interfere with its intended function and encloses fhe nailheads.

. The modified nail shown by Figures 7 and 8 is much the same as thatshown by Figures 1 through 3. It also is a steel wire nail whichincludes a shank 6 having a head I that provides a'plu-, rality ofspaced protuberances 8 on its top sur- 5 face. It differs in that theseprotuberances extend upwardly from .projections 9 formed in theperiphery of the head. This particular nail may prove superiorrespecting its ability to prevent slipping or loosening of the leadwhich eventually l0 encloses its head. It is to be understood that thisnail likewise has its head enclosed by lead as is illustrated by thedotted lines in Figure 7. The nail shown by Figures 9 and 10 includes ashank I0 and a head ll having protuberances I 2 15 being enclosed by arelatively plastic substance. 25

2. A nail including a shank having a head providing a plurality ofspaced protuberances on its top surface, said head and saidprotuberances being enclosed by a relatively plastic substance, and saidprotuberances being shaped to provide fiat inso clined anchoringsurfaces for said plastic substance.

3. A nail including a shank having a head providing a plurality ofspaced protuberances on its top surface, said head and saidprotuberances be- 35 ing enclosed by a relatively plastic substance, andsaid protuberances being shaped to provide inwardly facing anchoringsurfaces for said plas tic substances.

4. A nail including a shank having a head pro- 7 viding peripheralprojections and protuberances extending at angles from said head andsaid projections, said head, said projections and said protuberancesbeing enclosed by a plastic substance.

5. A nail including a shankhaving a head pro-= viding peripheralprojections and protuberances extending at angles from the tops of saidhead and said projections, said head, said projections and saidprotuberances being enclosed by a plastic 5 substance.

RAYMOND E. CAMP. 1

JOHN J. s'ravsrx.

